Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 68, Issue 2, Pages 594-600Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2007.10.033
Keywords
cation exchange textile; PET; beta-cyclodextrin; polycarboxylic acid; heavy metal; water decontamination
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The purpose of this paper was to evaluate the capacity of new cationic exchange textiles (CET) to uptake four heavy metals (Pb2+ Cd2+ Zn2+, Ni2+) from water. The CETs are nonwoven PET coated with a copolymer (polyester) of beta-cyclo-dextrin and different polycarboxylic acids: citric acid (CTR), 1,2,3,4-butanctetracarboxylic acid (BTCA), polyacrylic acid (PAA M-w, = 2000 g/mol). The efficiencies of these three CETs (either on carboxylic or carboxylate forms) and the uncoated (beta CD-citric acid) copolymer were established with respect to different experimental conditions (time, pH, metal mixture). Finally.. two CETs (those coated with CTR or BTCA) gave the best results for depollution applications in terms of the metal adsorption/cost ratio. (c) 2007 Elsevier Ltd. All rights reserved.
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